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VoiceXML语音平台中的语音资源预取算法

DOI: 10.13190/jbupt.200701.90.wangwl, PP. 90-95

Keywords: VoiceXML,预取,多用户Markov预测模型

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Abstract:

在分析目前主要预取算法优劣的基础上,根据VoiceXML语音平台与基于HTML的WWW之间的区别,提出在VoiceXML语音平台中应该预取其引用的语音资源,在采用基于热点预取技术的同时提出一种自适应的多用户共享的Markov模型,可以统一预测所有在线用户下一步所需的资源及其访问概率,有助于提高预测的准确率.仿真研究表明,与单用户Markov预测模型相比较,这种多用户共享的Markov预测模型能在相同带宽消耗下得到更好的命中率,减少用户请求的访问延迟,提高响应速度.

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